package com.lc.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.lc.reggie.common.R;
import com.lc.reggie.entity.Employee;
import com.lc.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;

/**
 * 员工管理
 */
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController
{
	@Autowired
	private EmployeeService employeeService;
	
	/**
	 * 员工登录
	 * @param req
	 * @param employee
	 * @return
	 */
	@PostMapping("/login")
	public R<Employee> login(HttpServletRequest req, @RequestBody Employee employee)
	{
		//1、根据页面提交的用户名username查询数据库
		LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
		lqw.eq(StringUtils.isNotEmpty(employee.getUsername()), Employee::getUsername, employee.getUsername());
		Employee emp = employeeService.getOne(lqw);
		
		//2、如果没有查询到则返回登录失败结果
		if (emp == null) return R.error("登录失败");
		
		//3、将页面提交的密码password进行md5加密处理
		String pwd = DigestUtils.md5DigestAsHex(employee.getPassword().getBytes());
		
		//4、密码比对，如果不一致则返回登录失败结果
		if (!emp.getPassword().equals(pwd)) return R.error("登录失败");
		
		//5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
		if (emp.getStatus() == 0) return R.error("账号已禁用");
		
		//6、登录成功，将员工id存入Session并返回登录成功结果
		req.getSession().setAttribute("employee", emp.getId());
		return R.success(emp);
	}
	
	/**
	 * 员工退出
	 * @param req
	 * @return
	 */
	@PostMapping("/logout")
	public R<String> logout(HttpServletRequest req)
	{
		req.getSession().removeAttribute("employee");
		return R.success("退出成功");
	}
	
	/**
	 * 新增员工
	 * @param req
	 * @param employee
	 * @return
	 */
	@PostMapping
	public R<String> save(HttpServletRequest req, @RequestBody Employee employee)
	{
		
		//设置初始密码123456，需要进行md5加密处理
		employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
		
//		employee.setCreateTime(LocalDateTime.now());
//		employee.setUpdateTime(LocalDateTime.now());
		
		//获得当前登录用户的id
//		Long empId = (Long) req.getSession().getAttribute("employee");
		
//		employee.setCreateUser(empId);
//		employee.setUpdateUser(empId);
		
		employeeService.save(employee);
		
		log.info("新增员工，员工信息：{}",employee.toString());
		
		return R.success("新增员工成功");
	}
	
	/**
	 * 员工信息分页查询
	 * @param page
	 * @param pageSize
	 * @param name
	 * @return
	 */
	@GetMapping("/page")
	public R<Page> getPage(int page, int pageSize, String name)
	{
//		log.info("page = {},pageSize = {},name = {}" ,page,pageSize,name);
		
		//构造分页构造器
		Page pageInfo = new Page(page, pageSize);
		
		//构造条件构造器
		LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
		
		//添加过滤条件
		lqw.like(StringUtils.isNotEmpty(name), Employee::getName, name);
		
		//添加排序条件
		lqw.orderByDesc(Employee::getUpdateTime);
		
		//执行查询
		employeeService.page(pageInfo, lqw);
		
		return R.success(pageInfo);
	}
	
	/**
	 * 根据id修改员工信息
	 * @param req
	 * @param employee
	 * @return
	 */
	@PutMapping
	public R<String> update(HttpServletRequest req, @RequestBody Employee employee)
	{
//		long id = Thread.currentThread().getId();
//		log.info("线程id为：{}", id);

//		Long empId = (Long) req.getSession().getAttribute("employee");
//		employee.setUpdateTime(LocalDateTime.now());
//		employee.setUpdateUser(empId);
		
		String oldEmp = employee.toString();
		employeeService.updateById(employee);
//		log.info(employee.toString());
		String newEmp = employee.toString();
		log.info("\r\n" + oldEmp + "\r\n============>\r\n" +newEmp);
		log.info(employee.getId() + "员工信息修改成功");
		return R.success("员工信息修改成功");
	}
	
	@GetMapping("/{id}")
	public R<Employee> getById(@PathVariable Long id)
	{
//		log.info("根据id查询员工信息...");
		Employee employee = employeeService.getById(id);
		if (employee != null) return R.success(employee);
		
		return R.error("没有查询到对应员工信息");
	}
}
